\begin{table}

\caption{}
\centering
\begin{tabular}[t]{lrrrrrr}
\toprule
\multicolumn{1}{c}{ } & \multicolumn{2}{c}{Completes (N=732)} & \multicolumn{2}{c}{Dropout in Post-Treatment (N=41)} & \multicolumn{2}{c}{ } \\
\cmidrule(l{3pt}r{3pt}){2-3} \cmidrule(l{3pt}r{3pt}){4-5}
  & Mean & Std. Dev. & Mean & Std. Dev. & Diff. in Means & p\\
\midrule
Age & 2.26 & 0.93 & 2.51 & 0.98 & 0.25 & 0.12\\
Gender & 1.30 & 0.46 & 1.20 & 0.40 & -0.11 & 0.11\\
Education & 4.62 & 1.00 & 4.68 & 1.29 & 0.06 & 0.78\\
Interest in Politics & 2.82 & 0.75 & 2.90 & 0.77 & 0.08 & 0.50\\
Ideology Self & 5.33 & 3.21 & 5.27 & 3.29 & -0.07 & 0.90\\
Polarization Candidates & 6.73 & 3.48 & 6.95 & 3.09 & 0.23 & 0.65\\
WP:Daily time & 6.85 & 1.32 & 6.90 & 1.32 & 0.05 & 0.80\\
WP:Frequency Politics & 4.44 & 2.12 & 4.21 & 2.12 & -0.23 & 0.53\\
WP:Frequency News & 3.33 & 1.98 & 3.10 & 2.00 & -0.23 & 0.49\\
WP:Frequency Family & 1.87 & 0.91 & 2.00 & 0.81 & 0.13 & 0.31\\
WP:Frequency Images about Politics & 3.72 & 1.94 & 3.34 & 1.76 & -0.37 & 0.19\\
N Active Social Media Apps & 3.95 & 1.28 & 3.59 & 1.41 & -0.37 & 0.11\\
Duration Pre-treatment & 19.34 & 216.18 & 6.01 & 3.01 & -13.34 & 0.10\\
Omnibus Test: & F-Statistics = 0.73, p-values = 0.72 &  &  &  &  & \\
\bottomrule
\end{tabular}
\end{table}
